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Topic: JSON

The JSON format is extremely popular on the web. JSON however is just a data structure. The interoperable use of JSON requires the full definition of allowed data structures which requires the definition of a schema for those data structures. Traditionally, this has been done at the OGC using XML. Therefore, the use of JSON may duplicate much of the work done on XML leading either to a situation where implementations are required to support both XML and JSON, thereby increasing the complexity of implementation, and/or to a situation where implementations fragment between those supporting XML and those supporting JSON, reducing interoperability.

Additional comment(s): OldTechnicalDiscussions

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A suggestion has been made that the OGC should develop a clear vision of the role of JSON in OGC standards either to be used in the same way as XML with the concommitant issues of implemenation complexity or fragmentation, or to be restricted in some way to only simple data structures.
  • PRO - This would clarify the role of JSON as a complement or as an alternative to text formats like KVP or to fully namespaced, schematized formats like XML.
  • CON - It might not be possible to reach any concensus on this issue.
  • CON - A policy limitation of JSON to simple data structures would artificially limit what is a technological or market issue.
  • CON - The OGC has used UML as the abstract data structure and then implemented the UML in XML, this could be done equally well with JSON.


the next hype. To me it is just another protocol binding for W*Ss, next to KVP, POX, SOAP, and REST. An internal c/s interface, not more, not less. If we modularize (!) specs accordingly this will not pose substantial complexity. WCS is demonstrating this.

-- PeterBaumann - 30 Jun 2013



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Topic revision: r3 - 31 Jul 2013, KevinStegemoller

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